CN212705090U - Mechanism for coating active agent on welding wire, welding wire conveying device, welding gun and welding system - Google Patents
Mechanism for coating active agent on welding wire, welding wire conveying device, welding gun and welding system Download PDFInfo
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- CN212705090U CN212705090U CN202021517004.4U CN202021517004U CN212705090U CN 212705090 U CN212705090 U CN 212705090U CN 202021517004 U CN202021517004 U CN 202021517004U CN 212705090 U CN212705090 U CN 212705090U
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Abstract
The utility model belongs to the welding field, in particular to a mechanism for coating an active agent on a welding wire, which comprises a storage component, a tubular component, a connecting pipeline and pumping equipment; wherein the storage component is provided with an inlet and an outlet and is used for storing the active agent; the two ends of the tubular component are respectively connected with the inlet and the outlet of the storage component through connecting pipelines, and a through hole suitable for the welding wire to pass through is arranged in the radial direction of the tubular component in a penetrating way; a pumping device is provided at the inlet and/or outlet of the storage part or on the connection line for circulating the active agent and regulating the pressure at the through hole position of the tubular part. The utility model discloses still relate to consumable electrode gas shielded arc welding rifle, consumable electrode gas shielded arc welding system, non-consumable electrode gas shielded arc welding system, plasma arc welding system. The utility model discloses a mechanism can evenly coat the active agent in order to obtain the even welding seam of penetration on the welding wire surface according to required amount, easy operation, friendly to the environment, and production efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of the welding, concretely relates to mechanism to welding wire coating active agent still relates to device, welder and the welding system of carrying the welding wire.
Background
The method for welding by adopting the active agent is a method developed in the last decade, and can increase the weld penetration, improve the weld forming and welding quality and improve the welding production efficiency. The main component of the active agent may be a metal oxide, a metal fluoride, or the like. Current research suggests that the mechanism by which the active agent increases penetration: firstly, the activator can influence the arc characteristics, and can improve the energy density of the arc and the arc force acting on a molten pool; secondly, the activator influences the surface tension of the molten pool, so that the flowing direction of the molten pool is changed from inside to outside to improve the welding penetration; both mechanisms are also believed to be compatible.
In the early days, the activator was mainly used for A-TIG welding of stainless steel, and has been successfully applied to welding of materials such as carbon steel, high-temperature alloy, titanium alloy and the like. With the mature application of A-TIG welding, the expansion of the application field of the active agent to MIG welding, plasma arc welding and laser welding becomes a new direction of welding development. At present, the welding of the active agent is mainly adopted in the manufacturing of warships and partial pressure vessels, and the large-scale popularization is not realized.
Fig. 1 shows a schematic diagram of a current welding process using an active agent, and the main operations are as follows: the main component of the active agent is mixed with volatile organic solvents such as acetone, alcohol and the like to form the active agent 1-1, then the active agent 1-1 is dipped by a brush and brushed on an area to be welded of the workpiece 1-2, after the solvents are volatilized, a welding gun 1-3 is used for welding, and in order to guarantee the welding effect, the general coating area is much larger than the area to be welded. It can be seen that the current active agent welding method has the following disadvantages:
firstly, complicated preparation work needs to be done before welding;
secondly, brushing the mixture by using a brush to obtain a uniform and consistent active agent coating, so that welding seams with uniform penetration can not be obtained by 1-5;
in general, the active agent 1-1 which can enter a molten pool 1-4 or has influence on electric arc welding only occupies a small proportion of a coating area, so that a large amount of the active agent 1-1 is wasted, and a solvent in the wasted active agent 1-1 is volatilized into air to pollute the environment; in addition, the large coating area results in prolonged volatilization time, which also affects production efficiency.
At present, a welding device using an active agent, which is simple to operate, uniform in weld penetration, environment-friendly and high in production efficiency, is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a mechanism for coating active agent on welding wire, when using the mechanism, the active agent circulates among the storage component, the tubular component and the connecting pipeline, the welding wire continuously passes through the through hole of the tubular component, the active agent can be coated on the surface of the welding wire, the welding wire with even penetration can be obtained during the subsequent welding, the operation is simple; because the using amount of the active agent is small, the mechanism is environment-friendly to use and has high production efficiency. On this basis, the utility model discloses consumable electrode gas shielded welding rifle, consumable electrode gas shielded welding system, non-consumable electrode gas shielded welding system and plasma arc welding system are still provided.
A first aspect of the present invention relates to a mechanism for coating an active agent on a welding wire, comprising a storage member, a tubular member, a connecting line, and at least one pumping device; wherein the content of the first and second substances,
a storage member provided with an inlet and an outlet for storing an active agent;
the two ends of the tubular component are respectively connected with the inlet and the outlet of the storage component through connecting pipelines, and a through hole suitable for the welding wire to pass through is arranged in the radial direction of the tubular component in a penetrating manner;
a pumping device is provided at the inlet and/or outlet of the storage part or at a connection line connected to the inlet and/or outlet of the storage part for circulating the active agent and regulating the pressure at the through-hole position of the tubular part.
In some embodiments of the first aspect of the present invention, the diameter of the through hole of the tubular member is adapted to pass through the diameter of the welding wire of the through hole is 0.02 to 3.3mm, for example 0.1 to 3mm larger.
In some embodiments of the first aspect of the present invention, the diameter of the through hole of the tubular member is 0.5 to 6.5mm, for example 0.6 to 6.2 mm.
In some embodiments of the first aspect of the present invention, the mechanism has one or more of the following features (a) to (H):
(A) the inner diameter of the tubular part is 1-10 mm;
(B) the through hole is positioned in the middle of the tubular component in the length direction;
(C) the inlet and the outlet of the storage part are respectively provided with a pumping device;
(D) the pumping equipment is a peristaltic pump, preferably selected from a fluid peristaltic pump and a powder peristaltic pump;
(E) the vibration component is arranged in the storage component and is used for uniformly mixing the pasty active agent or the jolt powder active agent;
(F) the active agent is in powder or paste form;
(G) the pressure parameter of the pumping equipment is adjustable;
(H) the tubular member is distal at both ends from the point to be welded.
In the present invention, the paste-like active agent and the powder-like active agent are the types of active agents conventionally used in the art, and those skilled in the art know and are familiar with the composition, the preparation method and the application environment of the paste-like active agent or the powder-like active agent, and can select the appropriate type of active agent for different welding methods or welding apparatuses according to professional knowledge and experience.
In some embodiments of the first aspect of the present invention, the pasty active agent is formed by mixing an active agent main component and a solvent, wherein the solvent used is preferably a solvent that can enter a molten pool, does not affect the quality of a weld joint, and is spatter-proof.
In some embodiments of the first aspect of the present invention, the radial dimension of the connecting line matches or is the same as the radial dimension of the tubular member. Wherein matching means that the radial dimensions of the connecting line and the tubular part are adapted to allow the two to be mounted in connection with each other.
A second aspect of the present invention relates to a device for feeding welding wire, comprising a guide member and the mechanism of the first aspect of the present invention; the guide part and the tubular part are sequentially arranged from a position far away from the position to be welded to a position close to the position to be welded along the length direction of the welding wire, the guide part is provided with a through hole suitable for the welding wire to pass through in a penetrating mode, the through hole is coaxial with the through hole of the tubular part, and the guide part is used for controlling the conveying direction of the welding wire and optionally conducting current to the welding wire.
In some embodiments of the second aspect of the present invention, the guiding member is connected to the tubular member, preferably the guiding member is fixedly connected to the tubular member.
In some embodiments of the second aspect of the present invention, the guide member is a wire feeding nozzle for controlling a feeding direction of the welding wire;
preferably, the tubular member is secured to the feed nozzle by a clamp.
In some embodiments of the second aspect of the present invention, the guide member is a contact tip for controlling the feeding direction of the welding wire while conducting current to the welding wire.
In some embodiments of the second aspect of the present invention, the diameter of the bore of the guide member is substantially the same as the diameter of the through-hole of the tubular member.
In some embodiments of the second aspect of the present invention, the point to be welded is a point to be welded to a workpiece or to a plane to be welded.
The third aspect of the utility model relates to a gas metal arc welding gun, which comprises a gun body, a protective cover and the device of the second aspect of the utility model; wherein, rifle body, guide part and tubulose part treat welding point to being close to from keeping away from along welding wire length direction and treat that welding point sets gradually, the safety cover cladding is outside guide part, and the clearance between safety cover and the guide part forms the passageway that is suitable for protective gas flow, and the rifle body is connected with the one end of safety cover, the other end that tubulose part is located the safety cover.
In some embodiments of the third aspect of the present invention, the protective cover is covered outside the part of the tubular member having the through hole or the whole tubular member.
In some embodiments of the third aspect of the present invention, the protective gas is a mixture of one or more selected from carbon dioxide, helium, argon, nitrogen and hydrogen.
In some embodiments of the third aspect of the present invention, both ends of the tubular member are located outside the protective cover and away from the protective cover.
In some embodiments of the third aspect of the present invention, the outer wall of the tubular member is provided with an insulating layer.
In some embodiments of the third aspect of the present invention, the guiding member is a contact tip for controlling the feeding direction of the welding wire while conducting current to the welding wire.
In some embodiments of the third aspect of the present invention, the consumable electrode gas shield welding torch is selected from consumable electrode CO2A gas shielded welding torch, a consumable electrode inert gas shielded welding torch and a consumable electrode active gas shielded welding torch.
In some embodiments of the third aspect of the present invention, the protective cover is connected to the gun body through an insulating layer.
In the third aspect of the present invention, the gun body is the other structures and/or connections of the conventional consumable electrode gas shielded welding gun in the field except for the contact tip, the protective cover and the gas flow passage.
In some embodiments of the third aspect of the present invention, the gun body is adapted to input shielding gas between the shield and the guide member.
In some embodiments of the third aspect of the present invention, the welding wire passes through the gun body and then penetrates into the guide member.
The utility model discloses the fourth aspect relates to a consumable electrode gas shielded welding system, include the utility model discloses the third aspect consumable electrode gas shielded welding rifle.
In the fourth aspect of the present invention, the gas metal arc welding system may further include other components, which are common components in the conventional gas metal arc welding system in the field; for example: in some embodiments, the gas metal arc welding system further comprises a power source, a gas supply component, a wire feed component, and a control component; the power supply is used for supplying electric energy to the system; the gas supply part is connected with a protective gas inlet on the top plate and is used for supplying protective gas; the wire feeding component is used for drawing out welding wires from the wire reel and then feeding the welding wires into a welding wire inlet of the top plate; the control component is used for controlling the overall operation of the system; for another example, in some embodiments, based on the foregoing, the gas metal arc welding system further comprises a cooling water system for cooling the butt weld gun.
In some embodiments of the fourth aspect of the present invention, the gas metal arc welding system is selected from the group consisting of consumable electrode CO2Gas shielded welding systems, consumable electrode inert gas shielded welding systems, and consumable electrode active gas shielded welding systems.
The fifth aspect of the present invention relates to a non-consumable electrode gas shielded welding system or a plasma arc welding system, including the second aspect of the present invention, the device and the welding gun, wherein the welding gun is a non-consumable electrode gas shielded welding gun or a plasma arc welding gun.
In some embodiments of the fifth aspect of the present invention, the non-consumable electrode gas shield welding torch is a tungsten inert gas shield welding torch, preferably selected from a tungsten argon arc welding torch and a tungsten helium arc welding torch.
In some embodiments of the fifth aspect of the present invention, the guide member is a wire feeding nozzle for controlling a feeding direction of the welding wire.
In some embodiments of the fifth aspect of the present invention, the tubular member is fixedly attached to the wire feed nozzle by a clamp.
In a fifth aspect of the present invention, the non-consumable electrode gas shield welding torch is a conventional non-consumable electrode gas shield welding torch of the art, and those skilled in the art are familiar with its construction and method of use.
In a fifth aspect of the present invention, the plasma arc torch is a conventional plasma arc torch in the art, and those skilled in the art are familiar with the construction and method of use thereof.
In the fifth aspect of the present invention, the non-consumable electrode gas shielded welding system may further include other components, which are common components in the conventional non-consumable electrode gas shielded welding system in the field; for example: in some embodiments, the non-consumable gas shielded welding system further comprises a power supply, a gas supply component, and a control component; the power supply is used for supplying electric energy to the system; the gas supply part is used for supplying protective gas to the welding gun; the control component is used for controlling the overall operation of the system; for another example, in some embodiments, the non-consumable gas shielded welding system further comprises a cooling water system for cooling the welding torch based on the foregoing.
In a fifth aspect of the present invention, the plasma arc welding system can further comprise other components that are common components in conventional plasma arc welding systems of the art; for example: in some embodiments, the plasma arc welding system further comprises a power supply, a gas supply circuit, a control circuit, and a cooling water circuit; the power supply is used for supplying electric energy to the system; the gas supply loop consists of a plasma gas path, a protective gas path and the like and is used for supplying plasma gas and protective gas to the welding gun; the control circuit is used for controlling the overall operation of the system; the cooling water circuit is used for cooling the welding gun.
Adopt the utility model discloses a mechanism to the method of welding wire coating active agent, including the following step:
one end of the welding wire is firstly inserted into the through hole of the tubular component, then the pumping device is started to enable the active agent to circularly flow among the storage component, the connecting pipeline and the tubular component, and then the welding wire is continuously inserted into the through hole of the tubular component to enable the active agent to be coated on the surface of the welding wire.
The utility model discloses in some embodiments, can also adjust the coating weight of active agent on the welding wire through the combination of the through-hole diameter size that changes tubular part, the pressure of control pumping equipment and the speed three that the welding wire passed the through-hole.
In some embodiments, the coating weight of the active agent on the welding wire is adjusted by controlling the pressure of the pumping equipment and the speed at which the welding wire passes through the through hole while the diameter of the through hole of the tubular member remains unchanged.
In some embodiments, the diameter of the through-hole of the tubular member remains constant, and the uniform coating of the active agent on the surface of the welding wire is obtained by maintaining a certain pressure of the pumping equipment and maintaining a certain speed at which the welding wire passes through the through-hole.
In some embodiments, the coating weight of the active agent on the wire is increased by increasing the pressure of the pumping equipment and/or reducing the speed at which the wire passes through the through-hole while the diameter of the through-hole of the tubular member remains unchanged, e.g., increasing the coating weight of the active agent on the wire can be a coating thickening of the active agent on the surface of the wire.
In some embodiments, the coating amount of the active agent on the welding wire is reduced by reducing the pressure of the pumping equipment and/or increasing the speed at which the welding wire passes through the through-hole, e.g., reducing the coating amount of the active agent on the welding wire can be a coating thinning of the active agent on the surface of the welding wire, while the diameter of the through-hole of the tubular member remains the same.
In some embodiments of the present invention, for pasty active agents, the coating amount of the active agent on the welding wire can be increased by increasing the viscosity of the active agent; for example, on the premise of keeping a certain through hole diameter, pumping equipment pressure and a certain speed of the welding wire passing through the through hole, the thickness of the coating of the active agent on the surface of the welding wire is increased by increasing the viscosity of the pasty active agent; similarly, for a paste-like active agent, the coating amount of the active agent on the welding wire can also be reduced by reducing the viscosity of the active agent.
Adopt the utility model discloses third aspect consumable electrode gas shielded arc welding rifle or the utility model discloses fourth aspect consumable electrode gas shielded arc welding system carry out welded method, including following step:
(1) passing the welding wire through the perforations in the guide member to electrically charge the welding wire;
(2) coating the welding wires with an active agent according to the method of the utility model;
(3) arc welding was performed with an active coated live wire under gas shielding.
In some embodiments, the gas is selected from a mixture of one or more of carbon dioxide, helium, argon, nitrogen, and hydrogen.
In some embodiments of the present invention, prior to step (1), the wire is straightened.
Adopt the utility model discloses the fifth aspect non-consumable electrode gas shielded welding system or plasma arc welding system carry out welded method, including following step:
1) passing the welding wire through the perforations in the guide member and then coating the welding wire with the active agent in accordance with the method of the present invention;
2) arc welding was performed using an active coated wire in conjunction with a welding gun.
The utility model discloses in some embodiments, in step 2), during the welding, the welding wire becomes 45 degrees contained angles with welder.
In some embodiments of the present invention, prior to step (1), the wire is straightened.
In the present invention, if there is no other description, wherein:
the term "gas metal arc welding" refers to a welding method in which an arc between a meltable welding wire and a workpiece to be welded is used as a heat source to melt the welding wire and a base metal, and a shielding gas is supplied to a welding zone to protect the arc, the molten welding wire, a molten pool, and the base metal of accessories from the harmful effects of ambient air. "consumable electrode gas shielded welding gun" refers to a welding gun that is used exclusively for consumable electrode gas shielded welding.
The term "non-consumable electrode gas shielded welding" refers to a welding method that uses an arc between a non-consumable electrode and a workpiece to be welded as a heat source to melt a base metal and a filler wire (or not) and supply a shielding gas to a welding area to protect the arc, the non-consumable electrode, the base metal, the filler wire, and a weld pool from harmful effects of air.
The term "plasma arc welding" refers to a fusion welding process that utilizes a high energy density beam of plasma arcs as a welding heat source.
The utility model discloses the beneficial effect who gains:
the utility model discloses mechanism to welding wire coating active agent can evenly coat the active agent in order to obtain the even welding seam of penetration in the welding wire surface according to required quantity, easy operation to, the active agent quantity is few, and is friendly to the environment, and production efficiency is high.
The utility model discloses gas metal arc welding system, non-gas metal arc welding system, plasma arc welding system homoenergetic obtain the welding seam that the penetration is even, unanimous, easy operation, friendly to the environment, production efficiency is high.
Drawings
In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic illustration of a prior art welding with an active agent;
FIG. 2 is a schematic diagram of one embodiment of the mechanism for applying an active agent to a welding wire according to the present invention;
FIG. 3 is a schematic view of an embodiment of the apparatus for feeding welding wire according to the present invention;
FIG. 4 is a schematic diagram of an embodiment of a consumable electrode gas shield welding torch of the present invention;
FIG. 5 is a schematic diagram of a non-consumable electrode gas shielded welding system according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of one embodiment of a plasma arc welding system of the present invention;
wherein:
1-1 is an active agent; 1-2 is a workpiece; 1-3 is a welding gun; 1-4 is a molten pool; 1-5 are welding seams; 2-1 is a storage component; 2-2 is a tubular member; 2-3 are connecting pipelines; 2-4 are pumping equipment; 2-5 are through holes; 2-6 are vibration parts; 2-7 is welding wire; 2-8 are guide parts; 2-9 are perforations; 2-10 is a gun body; 2-11 is a protective cover; 2-12 are channels; 2-13 is a non-consumable electrode gas shielded welding gun; 2-14 are plasma arc torches.
Detailed Description
Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying examples, in which it is to be understood that the examples are merely illustrative of some, but not all, of the embodiments of the invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
FIG. 2 is a schematic diagram of an embodiment of the mechanism for coating the welding wire with an active agent.
The mechanism for coating the welding wire with the active agent comprises a storage component 2-1, a tubular component 2-2, a connecting pipeline 2-3 and two pumping devices 2-4; wherein the content of the first and second substances,
a storage part 2-1 provided with an inlet B and an outlet a for storing an active agent;
the two ends of the tubular component 2-2 are respectively connected with the inlet B and the outlet A of the storage component through connecting pipelines 2-3, and a through hole 2-5 suitable for the welding wire 2-7 to pass through is arranged in the radial direction of the tubular component 2-2 in a penetrating way;
the pumping means 2-4 is provided at the inlet B and/or the outlet a of the storage part 2-1 or at the connection line 2-3 connected to the inlet B and/or the outlet a of the storage part 2-1, for circulating the active agent and regulating the pressure at the position of the through-hole 2-5 of the tubular part 2-2.
In one embodiment of the present invention, the diameter of the through-hole 2-5 of the tubular member 2-2 is 0.6 to 6.2 mm.
In one embodiment of the invention, the diameter of the through hole 2-5 of the tubular part 2-2 is 0.1-3 mm larger than the diameter of the welding wire 2-7 adapted to pass through said through hole 2-5.
In one embodiment of the present invention, the inner diameter of the tubular member 2-2 is 1 to 10 mm.
In one embodiment of the present invention, the through hole 2-5 is located at the middle of the tubular member 2-2 in the length direction.
In one embodiment of the invention, the inlet B and the outlet a of the storage part 2-1 are provided with one pumping device 2-4, respectively.
In one embodiment of the invention, the active agent is in the form of a paste.
In one embodiment of the invention, the pumping device 2-4 is a fluid peristaltic pump, the pressure parameters of which can be adjusted.
In one embodiment of the present invention, a vibration member 2-6 is provided in the storage member 2-1 for uniformly mixing the paste-like active agent.
In one embodiment of the invention, the two ends of the tubular part 2-2 are remote from the points to be welded.
In one embodiment of the invention the radial dimension of the connecting line 2-3 is the same as the radial dimension of the tubular part 2-2.
In one embodiment of the present invention, the diameter of the suitable welding wire 2-7 is 0.5-3.2 mm.
When the mechanism shown in FIG. 2 is used to coat the welding wires 2-7 with the active agent, one end of the welding wire 2-7 is first inserted into the through hole 2-5 of the tubular member 2-2, the pumping device 2-4 is then turned on to circulate the active agent between the storage member 2-1, the connecting line 2-3 and the tubular member 2-2, and then the welding wire 2-7 is continuously passed through the through hole 2-5 of the tubular member 2-2 to coat the active agent on the surface of the welding wire 2-7. While the diameter of the through-hole 2-5 of the tubular member 2-2 is kept constant, the amount of the active agent applied to the welding wire 2-7 is adjusted by controlling the pressure of the pumping device 2-4 and the speed of the welding wire 2-7 through the through-hole 2-5 during the coating process, for example, by maintaining a certain pressure of the pumping device 2-4 and a certain speed of the welding wire 2-7 through the through-hole 2-5 to obtain a uniform coating of the active agent on the surface of the welding wire 2-7.
Fig. 3 is a schematic structural view of an embodiment of the device for feeding welding wire according to the present invention.
The device for feeding welding wire comprises guide elements 2-8 and a mechanism shown in figure 2; the guide parts 2-8 and the tubular parts 2-2 are sequentially arranged from a position far away from the position to be welded to a position close to the position to be welded along the length direction of the welding wire, the guide parts 2-8 are provided with through holes 2-9 suitable for the welding wire 2-7 to pass through, the through holes 2-9 are coaxial with the through holes 2-5 of the tubular parts 2-2, and the guide parts 2-8 are used for controlling the conveying direction of the welding wire 2-7 and optionally conducting current to the welding wire 2-7.
In one embodiment of the present invention, the distance between the guide member 2-8 and the tubular member 2-2 is 0.5 to 10 mm.
In one embodiment of the invention, the guiding elements 2-8 are contact tips for controlling the feeding direction of the welding wires 2-7 and for conducting current to the welding wires 2-7.
In another embodiment of the invention, the guide member 2-8 is a wire feed nozzle for controlling the feeding direction of the welding wire 2-7, and the tubular member 2-2 is fixedly attached to the wire feed nozzle by means of a clamp.
In one embodiment of the invention, the diameter of the through-hole 2-9 of the guide member 2-8 is the same as the diameter of the through-hole 2-5 of the tubular member 2-2.
Fig. 4 is a schematic structural diagram of an embodiment of the consumable electrode gas shielded welding gun according to the present invention.
The gas metal arc welding gun comprises a gun body 2-10, a protective cover 2-11 and a device shown in figure 3; the gun body 2-10, the guide part 2-8 and the tubular part 2-2 are sequentially arranged from a position far away from a position to be welded to a position close to the position to be welded along the length direction of the welding wire 2-7, the protective cover 2-11 is covered outside the guide part 2-8, a gap between the protective cover 2-11 and the guide part 2-8 forms a channel 2-12 suitable for flowing of protective gas, the gun body 2-10 is connected with one end of the protective cover 2-11, and the tubular part 2-2 is located at the other end of the protective cover 2-11.
In one embodiment of the invention, the protective cover 2-11 is wrapped around the part of the tubular part 2-2 with the through holes 2-5 or the entire tubular part 2-2.
In one embodiment of the present invention, the protective gas is a mixture of one or more selected from carbon dioxide, helium, argon, nitrogen, and hydrogen.
In one embodiment of the invention, the tubular part 2-2 is located at both ends outside the protective cover 2-11 and away from the protective cover 2-11.
In one embodiment of the invention, the outer wall of the tubular part 2-2 is provided with an insulating layer.
In one embodiment of the invention, the guiding elements 2-8 are contact tips for controlling the feeding direction of the welding wires 2-7 and for conducting current to the welding wires 2-7.
In one embodiment of the invention, one end of the protective cover 2-11 is connected to the gun body 2-10 through an insulating layer.
In one embodiment of the present invention, the consumable electrode gas shield welding torch is selected from consumable electrode CO2A gas shielded welding torch, a consumable electrode inert gas shielded welding torch and a consumable electrode active gas shielded welding torch.
Yet another embodiment of the present invention is directed to a consumable electrode gas shield welding system including a consumable electrode gas shield welding gun as shown in fig. 4.
When welding is performed using the gas metal arc welding gun shown in fig. 4 or the aforementioned gas metal arc welding system, first, a welding wire is passed through the through holes 2-9 of the guide members 2-8 to charge the welding wires 2-7, then, an active agent is coated on the welding wires 2-7 according to the aforementioned method of coating the welding wires 2-7 with an active agent using the mechanism shown in fig. 2, and finally, arc welding is performed using the active agent-coated charged welding wires 2-7 under gas protection. The gas is selected from one or more of carbon dioxide, helium, argon, nitrogen and hydrogen.
Fig. 5 is a schematic structural diagram of an embodiment of the non-consumable electrode gas shielded welding system of the present invention.
The non-consumable electrode gas shield welding system includes the apparatus shown in FIG. 3 and non-consumable electrode gas shield welding torches 2-13.
In one embodiment of the present invention, the non-consumable electrode gas shield welding guns 2-13 are argon tungsten arc welding guns.
In one embodiment of the invention, the guide elements 2-8 are wire feed nozzles for controlling the direction of feed of the welding wires 2-7.
In one embodiment of the invention, the tubular member 2-2 is fixedly attached to the feed nozzle by a clamp.
Fig. 6 is a schematic structural view of one embodiment of a plasma arc welding system of the present invention.
The plasma arc welding system includes the apparatus shown in FIG. 3 and plasma arc torches 2-14.
In one embodiment of the invention, the guide elements 2-8 are wire feed nozzles for controlling the direction of feed of the welding wires 2-7.
In one embodiment of the invention, the tubular member 2-2 is fixedly attached to the feed nozzle by a clamp.
When welding is performed using the non-consumable gas shielded welding system of fig. 5 or the plasma arc welding system of fig. 6, first, the welding wires 2-7 are passed through the perforations 2-9 of the guide members 2-8, then the welding wires 2-7 are coated with the active agent according to the method of use of the mechanism shown in fig. 2, and then arc welding is performed using the active agent coated welding wires 2-7 in cooperation with a welding gun. When welding, the welding wires 2-7 form an included angle of 45 degrees with the welding gun.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A mechanism for applying an active agent to a wire, comprising a storage member, a tubular member, a connecting line, and at least one pumping device; wherein the content of the first and second substances,
a storage member provided with an inlet and an outlet for storing an active agent;
the two ends of the tubular component are respectively connected with the inlet and the outlet of the storage component through connecting pipelines, and a through hole suitable for the welding wire to pass through is arranged in the radial direction of the tubular component in a penetrating manner;
a pumping device is provided at the inlet and/or outlet of the storage part or at a connection line connected to the inlet and/or outlet of the storage part for circulating the active agent and regulating the pressure at the through-hole position of the tubular part.
2. The mechanism of claim 1, wherein the diameter of the through hole of the tubular member is 0.02 to 3.3mm larger than the diameter of the welding wire adapted to pass through the through hole.
3. The mechanism of claim 1, wherein the through hole of the tubular member has a diameter of 0.5 to 6.5 mm.
4. The mechanism according to any one of claims 1 to 3, characterized by one or more of the following (A) to (F):
(A) the inner diameter of the tubular part is 1-10 mm;
(B) the through hole is positioned in the middle of the tubular component in the length direction;
(C) the inlet and the outlet of the storage part are respectively provided with a pumping device;
(D) the pumping equipment is a peristaltic pump;
(E) the vibration component is arranged in the storage component and is used for uniformly mixing the pasty active agent or the jolt powder active agent;
(F) the tubular member is distal at both ends from the point to be welded.
5. A device for feeding welding wire, characterized by comprising a guide member and a mechanism according to any one of claims 1 to 4; the guide part and the tubular part are sequentially arranged from a position far away from the position to be welded to a position close to the position to be welded along the length direction of the welding wire, the guide part is provided with a through hole suitable for the welding wire to pass through in a penetrating mode, the through hole is coaxial with the through hole of the tubular part, and the guide part is used for controlling the conveying direction of the welding wire and optionally conducting current to the welding wire.
6. The device of claim 5, wherein the guide member is coupled to the tubular member.
7. A welding gun comprising a gun body, a protective cover and the device of claim 5 or 6; the welding gun comprises a gun body, a guide part and a tubular part, wherein the gun body, the guide part and the tubular part are sequentially arranged from a position far away from a position to be welded to a position close to the position to be welded along the length direction of a welding wire, a protective cover is coated outside the guide part, a gap between the protective cover and the guide part forms a channel suitable for flowing of protective gas, the gun body is connected with one end of the protective cover, and the tubular part is positioned at the other end of; the welding gun is a gas metal arc welding gun.
8. The welding gun according to claim 7, characterized by one or more of the following a to d:
a. the protective cover is covered outside a part of the tubular part with the through hole or the whole tubular part;
b. the two ends of the tubular component are positioned outside the protective cover and far away from the protective cover;
c. the guide component is a conductive nozzle;
d. the outer wall of the tubular member is provided with an insulating layer.
9. A welding system comprising the welding gun of claim 7 or 8.
10. A welding system comprising the apparatus of claim 5 or 6 and a torch, wherein the torch is a non-consumable electrode gas shield torch or a plasma arc torch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021517004.4U CN212705090U (en) | 2020-07-28 | 2020-07-28 | Mechanism for coating active agent on welding wire, welding wire conveying device, welding gun and welding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021517004.4U CN212705090U (en) | 2020-07-28 | 2020-07-28 | Mechanism for coating active agent on welding wire, welding wire conveying device, welding gun and welding system |
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| Publication Number | Publication Date |
|---|---|
| CN212705090U true CN212705090U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021517004.4U Active CN212705090U (en) | 2020-07-28 | 2020-07-28 | Mechanism for coating active agent on welding wire, welding wire conveying device, welding gun and welding system |
Country Status (1)
| Country | Link |
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| CN (1) | CN212705090U (en) |
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